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基于微观偏析模型的连铸方坯内裂纹敏感性研究
窦坤, 卿家胜, 王雷, 张晓峰, 王宝, 刘青, 董洪标

RESEARCH ON INTERNAL CRACK SUSCEPTIBILITY OF CONTINUOUS-CASTING BLOOM BASED ON MICRO-SEGREGATION MODEL
DOU Kun, QING Jiasheng, WANG Lei, ZHANG Xiaofeng, WANG Bao, LIU Qing, DONG Hongbiao
表1 钢中主要溶质元素的凝固参数[17]
Table 1 Solidification parameters of main solute elements in steel[17]
Element d-Fe g-Fe
DS,i / (m2 ? s-1) mi / (℃ ? %-1) ki DS,i / (m2 ? s-1) mi / (℃ ? %-1) ki
C 7.9×10-9 80 0.20 6.4×10-10 60 0.35
Si 3.5×10-11 8 0.77 1.1×10-12 8 0.52
Mn 4.0×10-11 5 0.75 4.2×10-13 5 0.75
P 4.4×10-11 34 0.13 2.5×10-12 34 0.06
S 1.6×10-10 40 0.06 3.9×10-11 40 0.025